B1428 Code - Ignition Switched Power Run/Crank Relay Circuit
Quick Answer
The B1428 diagnostic trouble code (DTC) relates to the Ignition Switched Power Run/Crank Relay Circuit in the vehicle. Common causes include Faulty relay: A malfunctioning relay can disrupt the flow of power to the ignition system components, Damaged wiring or connectors: Corrosion, fraying, or loose connections in the circuit can interfere with the relay's operation, Defective ignition switch: A faulty ignition switch can prevent the relay from receiving the necessary signals to function properly. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1428 indicates Ignition Switched Power Run/Crank Relay Circuit.
- Common causes
- Common causes include Faulty relay: A malfunctioning relay can disrupt the flow of power to the ignition system components, Damaged wiring or connectors: Corrosion, fraying, or loose connections in the circuit can interfere with the relay's operation, Defective ignition switch: A faulty ignition switch can prevent the relay from receiving the necessary signals to function properly.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B1428 Description
The B1428 diagnostic trouble code (DTC) relates to the Ignition Switched Power Run/Crank Relay Circuit in the vehicle. This code indicates a problem with the circuit that controls the relay responsible for providing power to the vehicle's ignition system during the run and crank modes. The ignition switch plays a crucial role in starting and running the engine, and any issues with the relay circuit can affect the vehicle's performance and functionality.
Common Causes of B1428
- Faulty relay: A malfunctioning relay can disrupt the flow of power to the ignition system components.
- Damaged wiring or connectors: Corrosion, fraying, or loose connections in the circuit can interfere with the relay's operation.
- Defective ignition switch: A faulty ignition switch can prevent the relay from receiving the necessary signals to function properly.
- Electrical issues: Other electrical problems in the vehicle, such as a weak battery or alternator, can impact the relay circuit's performance.
Symptoms of B1428
- Difficulty starting the engine: The vehicle may have trouble starting or may require multiple attempts to start the engine.
- Intermittent stalling: The engine may stall unexpectedly while driving, especially during acceleration or deceleration.
- Engine misfires: The engine may misfire or exhibit rough idling, indicating a disruption in the ignition system.
- Loss of power: The vehicle may experience a loss of power or reduced performance due to insufficient power supply to critical components.
How to Fix B1428
- Diagnostic testing: Use a diagnostic scanner to retrieve the specific trouble code and perform a thorough inspection of the ignition switched power run/crank relay circuit.
- Check relay and wiring: Inspect the relay for signs of damage or malfunction, along with the wiring and connectors in the circuit.
- Repair or replace components: Replace any faulty relay, damaged wiring, or connectors that are contributing to the issue.
- Test system functionality: After repairs are made, test the ignition system to ensure that the relay circuit is functioning correctly and providing power to the necessary components.
- Clear codes: Clear the DTC from the vehicle's computer memory using the diagnostic scanner to reset the system and verify that the issue has been resolved.
Cost to Fix B1428
The typical repair costs for addressing the B1428 code related to the Ignition Switched Power Run/Crank Relay Circuit can vary depending on the specific cause of the issue and the extent of repairs needed. In general, the cost of parts such as a new relay or wiring components can range from $50 to $200, while labor costs can add an additional $100 to $300 or more, depending on the shop's hourly rates and the complexity of the repair.
Need more information about the B1428 code?
Need more information on how to fix the B1428 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1428 code diagnosed by a professional: Find a repair shop in your area
Code B1428 Information for Specific Makes
- B1428 Buick — Ignition Switched Power Run/Crank Relay Circuit
- B1428 Cadillac — Ignition Switched Power Run/Crank Relay Circuit
- B1428 Chevrolet — Ignition Switched Power Run/Crank Relay Circuit
- B1428 GMC — Ignition Switched Power Run/Crank Relay Circuit
- B1428 Lexus — Rear Solar Sensor Circuit
- B1428 Toyota — Rear Solar Sensor Circuit
Frequently Asked Questions about B1428 Code
1. What are the common symptoms of OBDII code B1428?
- Common symptoms include issues with the ignition switch, failure to start the vehicle, and problems with the power run/crank relay circuit.
2. What are the possible causes of OBDII code B1428?
- The code B1428 can be triggered by a faulty ignition switch, a malfunctioning relay, damaged wiring in the circuit, or a poor connection.
3. How can I diagnose the issue related to OBDII code B1428?
- Diagnosing the problem involves checking the ignition switch operation, inspecting the relay, testing the wiring for continuity, and scanning the vehicle's computer for additional trouble codes.
4. What are the repair options for OBDII code B1428?
- Repair options include replacing the faulty ignition switch, repairing or replacing the relay, fixing damaged wiring, and ensuring all connections are secure and free of corrosion.
5. Can I drive my vehicle with OBDII code B1428?
- It is not recommended to drive the vehicle with code B1428 as it can lead to starting issues and potential safety hazards. It is best to address the problem promptly.
6. How much does it cost to repair OBDII code B1428?
- The cost of repairing OBDII code B1428 can vary depending on the specific issue, labor rates, and parts needed. It is advisable to consult a professional mechanic for an accurate estimate.
7. Are there any DIY tips for troubleshooting OBDII code B1428?
- DIY tips for troubleshooting code B1428 include checking the ignition switch for proper function, inspecting the relay for damage, and visually inspecting the wiring for any signs of wear or corrosion.
8. Can OBDII code B1428 cause other problems in the vehicle?
- Yes, if left unresolved, OBDII code B1428 can lead to further electrical issues, starting problems, and potential damage to other components in the ignition system.
9. How long does it typically take to repair OBDII code B1428?
- The repair time for OBDII code B1428 can vary depending on the specific issue and the complexity of the repair. In general, it may take a few hours to a full day to address the problem.
10. Is it necessary to reset the OBDII system after repairing code B1428?
- Yes, it is recommended to clear the OBDII system after repairing code B1428 to ensure the error code is no longer present and to monitor if the issue reoccurs.
Discuss the causes and fixes for B1428 OBDII Code
Code B1428 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.